//
//  NXVolumeObserver.h
//  YOSticker
//
//  Created by 王成 on 14/10/31.
//  Copyright (c) 2014年 YOSticker. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <MediaPlayer/MediaPlayer.h>
#import <AudioToolbox/AudioToolbox.h>

@class NXVolumeObserver;

@protocol NXVolumeObserverDelegate <NSObject>

- (void)volumeButtonDidClick:(NXVolumeObserver *) button;

@end

@interface NXVolumeObserver : NSObject
{

}

@property(nonatomic,strong)id<NXVolumeObserverDelegate>delegate;

+ (NXVolumeObserver *)sharedInstance;

- (void)startObserveVolumeChangeEvents;

- (void)stopObserveVolumeChangeEvents;
@end
